CN113892668B - Control method of agglomerated tobacco shreds in tobacco shred drying process - Google Patents

Control method of agglomerated tobacco shreds in tobacco shred drying process Download PDF

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CN113892668B
CN113892668B CN202111364892.XA CN202111364892A CN113892668B CN 113892668 B CN113892668 B CN 113892668B CN 202111364892 A CN202111364892 A CN 202111364892A CN 113892668 B CN113892668 B CN 113892668B
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tobacco
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CN113892668A (en
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陈霞
李文伟
李培培
孟霞
王文飞
赵伟民
赵海娟
杜陕涛
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China Tobacco Henan Industrial Co Ltd
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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B3/00—Preparing tobacco in the factory
    • A24B3/04—Humidifying or drying tobacco bunches or cut tobacco
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B3/00—Preparing tobacco in the factory
    • A24B3/06—Loosening tobacco leaves or cut tobacco
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B9/00—Control of the moisture content of tobacco products, e.g. cigars, cigarettes, pipe tobacco
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

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Abstract

The invention provides a control method of agglomerated tobacco shreds in a tobacco shred drying process, which comprises the following steps: setting influencing parameters of humidifying equipment and drying equipment on cut tobacco in the cut tobacco drying process, and obtaining setting conditions of the influencing parameters; presetting a normal level, a lower level and an upper level according to the set value of the influence parameter in an adjustable range, and establishing a test factor level table by taking the influence parameter as a test factor; setting the number of factor test points, and changing the test factor level according to the test factor level table to perform an effect test on the caking quantity, the water content, the filling value and the whole tobacco rate of the tobacco shreds in the tobacco shred drying process; and obtaining test data after the equipment is stable in operation, and carrying out regression analysis on the agglomerated yarn quantity, the water content, the filling value and the whole yarn rate according to the test data so as to determine the control priority sequence of the influencing parameters. The invention can improve the stability of the moisture content of the cut tobacco in the drying process of the cut tobacco so as to reduce the agglomerated cut tobacco.

Description

Control method of agglomerated tobacco shreds in tobacco shred drying process
Technical Field
The invention relates to the technical field of tobacco processing, in particular to a control method of agglomerated tobacco shreds in a tobacco shred drying process.
Background
The air flow drying is one of the main drying modes of the tobacco shreds, and the air in the pneumatic conveying is replaced by high-temperature gas in the air flow drying equipment, so that the tobacco shreds are dehydrated in the suspension conveying process. However, the tobacco shreds are easy to accumulate at the turning part of the pipeline, and a rubbing and rolling effect is generated under the combined action of the outer wall of the pipeline and wind power, and the tobacco shreds roll, mix and slide along the outer wall of the pipeline to advance, so that the tobacco shreds are wound to form clusters, the full and uniform contact between the tobacco shreds and hot air current is affected, the internal and external dehydration speeds of the tobacco shreds are inconsistent, and the problem that the moisture content of the tobacco shreds in the dried interior of the tobacco shreds is high is caused. Therefore, how to control the agglomerated tobacco shreds in the tobacco shred drying process has important research significance.
Disclosure of Invention
The invention provides a control method of agglomerated tobacco in a tobacco shred drying process, which solves the problem that the agglomerated tobacco in the existing tobacco shred drying process is easy to cause high tobacco shred moisture content, and can improve the stability of the tobacco shred moisture content in the tobacco shred drying process so as to reduce the agglomerated tobacco shred.
In order to achieve the above object, the present invention provides the following technical solutions:
a control method of agglomerated tobacco shred in tobacco shred drying process comprises the following steps:
setting influencing parameters of humidifying equipment and drying equipment on cut tobacco in the cut tobacco drying process, and obtaining setting conditions of the influencing parameters;
presetting a normal level, a lower level and an upper level according to the set value of the influence parameter in an adjustable range, and establishing a test factor level table by taking the influence parameter as a test factor;
setting the number of factor test points, and changing the test factor level according to the test factor level table to perform an effect test on the caking quantity, the water content, the filling value and the whole tobacco rate of the tobacco shreds in the tobacco shred drying process;
and obtaining test data after the equipment is stable in operation, and carrying out regression analysis on the agglomerated yarn quantity, the water content, the filling value and the whole yarn rate according to the test data so as to determine the control priority sequence of the influencing parameters.
Preferably, the setting of parameters of influence of the humidifying device and the drying device on the cut tobacco in the cut tobacco drying process includes:
setting the steam flow, the inlet tide-discharging air gate opening, the upper tide-discharging air gate opening and the outlet tide-discharging air gate opening of the humidifying equipment as the influencing parameters;
setting the drum rotating speed, the hot air temperature and the moisture removal negative pressure of the dryer as the influencing parameters.
Preferably, the regression analysis of the amount of the agglomerated filaments, the water content and the filling value according to the test data includes:
and estimating the effect and the coefficient of the quantity of the caking filaments according to the steam flow, the rotating speed of the roller and the combination of the steam flow and the rotating speed of the roller according to the test data so as to obtain a regression equation of the quantity of the caking ratios.
Preferably, the regression analysis is performed on the agglomerated yarn amount, the water content, the filling value and the whole yarn rate according to the test data, and the method further comprises:
and estimating the steam flow, the moisture removal negative pressure and the effect and coefficient of the steam flow and the moisture removal negative pressure on the tobacco shred filling value according to the test data so as to obtain a regression equation of the filling value.
Preferably, the regression analysis is performed on the agglomerated yarn amount, the water content, the filling value and the whole yarn rate according to the test data, and the method further comprises:
and estimating the steam flow, the opening of the inlet tide-discharging air valve, the hot air temperature and the effect and coefficient of the steam flow and the opening of the inlet tide-discharging air valve on the moisture content of the tobacco shreds according to the test data so as to obtain a regression equation of the moisture content.
Preferably, the regression analysis is performed on the agglomerated yarn amount, the water content, the filling value and the whole yarn rate according to the test data, and the method further comprises:
and estimating the effects and coefficients of the steam flow, the opening of the inlet tide-discharging air gate, the opening of the outlet tide-discharging air gate, the hot air temperature, the rotating speed of the roller and the tide-discharging negative pressure, and the effects and coefficients of the steam flow and the hot air temperature, the opening of the inlet tide-discharging air gate and the opening of the outlet tide-discharging air gate, and the opening of the inlet tide-discharging air gate and the rotating speed of the roller on the tobacco shred finishing rate according to test data so as to obtain a regression equation of the finishing rate.
Preferably, the method further comprises:
and obtaining corresponding decision coefficients according to regression equation models of the agglomerated yarn quantity, the water content, the filling value and the whole yarn rate, and controlling the priority order of the influence parameters according to the decision coefficients.
Preferably, the controlling the priority order of the influencing parameters includes:
the control priority sequence of the amount of the agglomerated yarn is as follows: the combination of the steam flow rate, the roller rotating speed and the steam flow rate and the roller rotating speed;
the control priority sequence of the whole yarn rate is as follows: the rotary speed of the roller is equal to the opening of the inlet tide-discharging air gate, the combination of the rotary speed of the roller and the opening of the inlet tide-discharging air gate is equal to the opening of the outlet tide-discharging air gate, the negative pressure of the tide is equal to the combination of the opening of the outlet tide-discharging air gate and the negative pressure of the tide is equal to the steam flow, the combination of the opening of the inlet tide-discharging air gate and the opening of the outlet tide-discharging air gate is equal to the hot air temperature.
Preferably, the method further comprises:
the tobacco shred finishing rate is increased by reducing the opening of the inlet tide-discharging air gate and the opening of the outlet tide-discharging air gate or increasing the tide-discharging negative pressure;
reducing the amount of agglomerated filaments by reducing the steam flow, the inlet moisture removal damper opening, the outlet moisture removal damper opening and the hot air temperature.
The invention provides a control method of agglomerated tobacco in a tobacco shred drying process, which comprises the steps of setting influencing parameters of the agglomerated tobacco, establishing a test factor level table to perform an effect test on the agglomerated tobacco amount, the water content, the filling value and the whole tobacco shred rate, and performing regression analysis according to test data to determine the control priority of the influencing parameters. Solves the problem that the agglomerated tobacco shred in the existing tobacco shred drying process is easy to cause high moisture content of the tobacco shred, and can improve the stability of the moisture content of the tobacco shred in the tobacco shred drying process so as to reduce the agglomerated tobacco shred.
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In order to more clearly illustrate the specific embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described.
Fig. 1 is a schematic diagram of a control method of agglomerated tobacco in a tobacco shred drying process.
Detailed Description
In order to make the solution of the embodiment of the present invention better understood by those skilled in the art, the embodiment of the present invention is further described in detail below with reference to the accompanying drawings and embodiments.
The invention provides a control method of clustered tobacco in a tobacco shred drying process, aiming at the problem of unstable moisture content of the clustered tobacco in the current tobacco shred drying process. Solves the problem that the agglomerated tobacco shred in the existing tobacco shred drying process is easy to cause high moisture content of the tobacco shred, and can improve the stability of the moisture content of the tobacco shred in the tobacco shred drying process so as to reduce the agglomerated tobacco shred.
As shown in fig. 1, a method for controlling agglomerated tobacco in a tobacco shred drying process includes:
s1: setting influencing parameters of the humidifying equipment and the drying equipment on the cut tobacco in the cut tobacco drying process, and obtaining setting conditions of the influencing parameters.
S2: and presetting the normal level, the declining level and the declining level according to the set value of the influence parameter in the adjustable range, and establishing a test factor level table by taking the influence parameter as a test factor.
S3: setting the number of factor test points, and changing the test factor level according to the test factor level table to perform an effect test on the caking quantity, the water content, the filling value and the whole tobacco shred rate of the tobacco shreds in the tobacco shred drying process.
S4: and obtaining test data after the equipment is stable in operation, and carrying out regression analysis on the agglomerated yarn quantity, the water content, the filling value and the whole yarn rate according to the test data so as to determine the control priority sequence of the influencing parameters.
Further, the setting of parameters of influence of the humidifying device and the drying device on the cut tobacco in the cut tobacco drying process comprises the following steps: setting the steam flow, the inlet tide-discharging air gate opening, the upper tide-discharging air gate opening and the outlet tide-discharging air gate opening of the humidifying equipment as the influencing parameters.
Setting the drum rotating speed, the hot air temperature and the moisture removal negative pressure of the dryer as the influencing parameters.
Specifically, two-level factor design is performed, and test factors comprise steam flow, inlet tide-discharging air gate opening, upper tide-discharging air gate opening, outlet tide-discharging air gate opening of SIROX humidifying equipment, drum rotating speed, hot air temperature and tide-discharging negative pressure of a KLD dryer. For each test factor, 2 levels, i.e., an upper level higher than the normal setting value and a lower level lower than the normal setting value, are set up based on the current setting state as a center and extended upward and downward according to the adjustable range of the influence parameter, and as shown in table 1, the difference between the 2 levels should not be too small in order to ensure the test effect.
TABLE 1
Figure BDA0003360514290000041
Figure BDA0003360514290000051
The water content, temperature, tobacco shred structure and filling value of the tobacco shreds can be sampled and detected by adopting a conventional method. And the sampling and detecting of the amount of the agglomerated filaments includes: sampling about 2kg from the outlet of the KLD cut tobacco drier, weighing, selecting agglomerated yarn from the sampled and weighed rapidly, and calculating the agglomerated yarn rate; the test was repeated twice and averaged.
Test protocol using 2 7-3 Design, factor test point 16, center point test 5, total 21 test. The test protocol is shown in Table 2;
TABLE 2
Figure BDA0003360514290000052
The test steps and requirements are as follows:
(1) The test factor levels were varied as per table 2, keeping the other production conditions (parameters) unchanged; and sampling and detecting after the equipment is stable in operation. The repeated sampling test is required to be performed 2 times, and a moderate time interval is required between the two samples.
(2) The test times are more, and the test can be completed in multiple days or shifts. In order to reduce the influence of production condition changes on test results, the stability of raw materials and production conditions should be ensured as much as possible during the test.
Further, the regression analysis of the amount of agglomerated filaments, the water content and the filling value according to the test data includes:
and estimating the effect and the coefficient of the quantity of the caking filaments according to the steam flow, the rotating speed of the roller and the combination of the steam flow and the rotating speed of the roller according to the test data so as to obtain a regression equation of the quantity of the caking ratios.
In one embodiment, the regression analysis results are shown in tables 3, 4 and 5:
TABLE 3 Table 3
Figure BDA0003360514290000061
Analysis of variance is as follows:
TABLE 4 Table 4
Figure BDA0003360514290000062
The coefficient estimation is as follows:
TABLE 5
Figure BDA0003360514290000063
Regression analysis results show that (1) steam flow and drum rotation speed are main factors influencing the amount of clustered tobacco shreds, and interaction exists between the steam flow and the drum rotation speed; (2) the main and secondary orders of the influence are A > E > AE; (3) the amount of agglomerated wires is the lowest at low steam flow, is less influenced by the rotating speed of the roller, and is the highest at high steam flow and high rotating speed of the roller.
Further, the regression analysis is performed on the amount of the agglomerated silk, the water content and the filling value according to the test data, and the method further comprises the following steps:
and estimating the steam flow, the moisture removal negative pressure and the effect and coefficient of the steam flow and the moisture removal negative pressure on the tobacco shred filling value according to the test data so as to obtain a regression equation of the filling value.
In one embodiment, the regression analysis results are shown in tables 6, 7 and 8:
the effect of the fill value and the coefficient are estimated as follows:
TABLE 6
Figure BDA0003360514290000071
The analysis of variance results were as follows:
TABLE 7
Figure BDA0003360514290000072
The coefficient estimation is as follows:
TABLE 8
Figure BDA0003360514290000073
Regression analysis results show that (1) steam flow and moisture removal negative pressure are main factors influencing the filling value, and interaction exists between the steam flow and the moisture removal negative pressure; (2) the main and secondary orders of influence are AG > A > G; (3) the filling value is highest when the steam flow is high and the moisture removal negative pressure is high, and the filling value is lowest when the steam flow is high, the moisture removal negative pressure is low or the steam flow is low and the moisture removal negative pressure is high.
Further, the regression analysis is performed on the amount of the agglomerated silk, the water content and the filling value according to the test data, and the method further comprises the following steps:
and estimating the steam flow, the opening of the inlet tide-discharging air valve, the hot air temperature and the effect and coefficient of the steam flow and the opening of the inlet tide-discharging air valve on the moisture content of the tobacco shreds according to the test data so as to obtain a regression equation of the moisture content.
In one embodiment, the regression analysis results are shown in tables 9, 10 and 11:
the effect and coefficient of the water content are estimated as follows:
TABLE 9
Figure BDA0003360514290000081
The analysis of variance results were as follows:
table 10
Figure BDA0003360514290000082
The coefficient estimation is as follows:
TABLE 11
Figure BDA0003360514290000083
Regression analysis results show that (1) steam flow, inlet tide gate opening and hot air temperature are main factors influencing the water content, and interaction exists between the steam flow and the inlet tide gate opening; (2) the primary and secondary orders of influence are AB > F > B > A; (3) the water content is lowest when the steam flow rate is low and the tide gate opening is high, and the water content is highest when the tide gate opening is low; the higher the hot air temperature, the lower the water content.
Further, the regression analysis is performed on the amount of the agglomerated silk, the water content and the filling value according to the test data, and the method further comprises the following steps:
and estimating the effects and coefficients of the steam flow, the opening of the inlet tide-discharging air gate, the opening of the outlet tide-discharging air gate, the hot air temperature, the rotating speed of the roller and the tide-discharging negative pressure, and the effects and coefficients of the steam flow and the hot air temperature, the opening of the inlet tide-discharging air gate and the opening of the outlet tide-discharging air gate, and the opening of the inlet tide-discharging air gate and the rotating speed of the roller on the tobacco shred finishing rate according to test data so as to obtain a regression equation of the finishing rate.
In one embodiment, the regression analysis results are shown in tables 12, 13 and 14:
the effect and coefficient of the whole wire rate is estimated as follows:
table 12
Figure BDA0003360514290000091
The analysis of variance results were as follows:
TABLE 13
Figure BDA0003360514290000092
The coefficient of the whole yarn rate is estimated as follows:
TABLE 14
Figure BDA0003360514290000101
The method further comprises the steps of: and obtaining corresponding decision coefficients according to regression equation models of the agglomerated yarn quantity, the water content, the filling value and the whole yarn rate, and controlling the priority order of the influence parameters according to the decision coefficients.
In practical application, the regression analysis result shows that the decision coefficient and the adjustment decision coefficient of the agglomerated filament quantity regression model are respectively 90.68% and 88.53%, the decision coefficient and the adjustment decision coefficient of the filling value regression model are respectively 62.50% and 53.85%, the decision coefficient and the adjustment decision coefficient of the moisture content regression model are respectively 75.83% and 68.92%, the decision coefficient and the adjustment decision coefficient of the whole filament quantity regression model are respectively 94.99% and 89.98%, and the broken filament rate does not establish a regression model with statistical significance. Therefore, it is considered that 7 parameters have a large influence on the amount of the structural yarn and the yarn-setting rate when they are changed within the range of interest, and have a small influence on the other indices.
Further, the controlling the priority order of the influencing parameters includes: the control priority sequence of the amount of the agglomerated yarn is as follows: steam flow > drum speed > steam flow in combination with drum speed. The control priority sequence of the whole yarn rate is as follows: the rotary speed of the roller is equal to the opening of the inlet tide-discharging air gate, the combination of the rotary speed of the roller and the opening of the inlet tide-discharging air gate is equal to the opening of the outlet tide-discharging air gate, the negative pressure of the tide is equal to the combination of the opening of the outlet tide-discharging air gate and the negative pressure of the tide is equal to the steam flow, the combination of the opening of the inlet tide-discharging air gate and the opening of the outlet tide-discharging air gate is equal to the hot air temperature.
The method further comprises the steps of: the tobacco shred finishing rate is increased by reducing the opening of the inlet tide-discharging air valve and the opening of the outlet tide-discharging air valve or increasing the tide-discharging negative pressure. Reducing the amount of agglomerated filaments by reducing the steam flow, the inlet moisture removal damper opening, the outlet moisture removal damper opening and the hot air temperature.
Specifically, the amount of agglomerated wires is the lowest at low steam flow and is less influenced by the rotating speed of the roller, the wire finishing rate is the highest at low steam flow and low hot air temperature, and the wire finishing rate is the highest at high roller rotating speed and low inlet tide-discharging air gate opening, so that the requirements of the lowest amount of agglomerated wires and the highest wire finishing rate can be met at low steam flow and high roller rotating speed; the whole silk rate is highest when the opening degree of the low inlet tide-discharging air valve and the opening degree of the low outlet tide-discharging air valve are the same, and the whole silk rate is higher when the tide-discharging negative pressure is higher. In summary, the steam flow, the opening of the inlet and outlet moisture-discharging air valve and the hot air temperature are at low level, and the drum rotating speed and the moisture-discharging negative pressure are at high level, thereby being beneficial to reducing the yarn agglomeration amount and improving the yarn straightening rate.
The invention provides a control method of agglomerated tobacco shreds in a tobacco shred drying process, which comprises the steps of setting influencing parameters of the agglomerated tobacco shreds, establishing a test factor level table to perform an effect test on the agglomerated tobacco shred quantity, the water content, the filling value and the whole tobacco shred rate, and performing regression analysis according to test data to determine the control priority of the influencing parameters. Solves the problem that the agglomerated tobacco shred in the existing tobacco shred drying process is easy to cause high moisture content of the tobacco shred, can improve the stability of the moisture content of the tobacco shred in the tobacco shred drying process, and reduces the agglomerated tobacco shred.
While the construction, features and effects of the present invention have been described in detail with reference to the embodiments shown in the drawings, the above description is only a preferred embodiment of the present invention, but the present invention is not limited to the embodiments shown in the drawings, and all changes made according to the concepts of the present invention or modifications as equivalent embodiments are within the scope of the present invention without departing from the spirit covered by the specification and drawings.

Claims (6)

1. A method for controlling agglomerated tobacco shreds in a tobacco shred drying process is characterized by comprising the following steps:
setting influencing parameters of humidifying equipment and drying equipment on cut tobacco in the cut tobacco drying process, and obtaining setting conditions of the influencing parameters;
the setting values of the influence parameters are preset in normal level, lower level and upper level according to the adjustable range, a test factor level table is built by taking the influence parameters as test factors, and for each test factor, the current setting state is taken as the center, and the adjustment range of the influence parameters is expanded upwards and downwards according to the current setting state;
setting the number of factor test points, and changing the test factor level according to the test factor level table to perform an effect test on the caking quantity, the water content, the filling value and the whole tobacco rate of the tobacco shreds in the tobacco shred drying process;
obtaining test data after the equipment is stable in operation, carrying out regression analysis on the agglomerated yarn quantity, the water content, the filling value and the whole yarn rate according to the test data, obtaining corresponding decision coefficients according to regression equation models of the agglomerated yarn quantity, the water content, the filling value and the whole yarn rate, and further determining the control priority of the influence parameters according to the decision coefficients;
the setting of parameters of influence of the humidifying equipment and the drying equipment on the cut tobacco in the cut tobacco drying process comprises the following steps:
setting the steam flow, the inlet tide-discharging air gate opening, the upper tide-discharging air gate opening and the outlet tide-discharging air gate opening of the humidifying equipment as the influencing parameters;
setting the drum rotating speed, the hot air temperature and the moisture removal negative pressure of the drying equipment as the influencing parameters;
the controlling the priority order of the influencing parameters comprises the following steps:
the control priority sequence of the amount of the agglomerated yarn is as follows: the combination of the steam flow rate, the roller rotating speed and the steam flow rate and the roller rotating speed;
the control priority sequence of the water content is as follows: the combination of the steam flow and the opening degree of the inlet tide gate is that the hot air temperature is that the opening degree of the inlet tide gate is that the steam flow;
the control priority order of the filling values is as follows: the combination of steam flow and moisture removal negative pressure > steam flow > moisture removal negative pressure;
the control priority sequence of the whole yarn rate is as follows: the rotary speed of the roller is equal to the opening of the inlet tide-discharging air gate, the combination of the rotary speed of the roller and the opening of the inlet tide-discharging air gate is equal to the opening of the outlet tide-discharging air gate, the negative pressure of the tide is equal to the combination of the opening of the outlet tide-discharging air gate and the negative pressure of the tide is equal to the steam flow, the combination of the opening of the inlet tide-discharging air gate and the opening of the outlet tide-discharging air gate is equal to the hot air temperature.
2. The method for controlling agglomerated tobacco shreds in the tobacco shred drying process according to claim 1, wherein the regression analysis of the amount of agglomerated tobacco shreds, the water content, the filling value and the overall tobacco shred ratio according to the test data includes:
and estimating the effect and the coefficient of the quantity of the caking filaments according to the steam flow, the rotating speed of the roller and the combination of the steam flow and the rotating speed of the roller according to the test data so as to obtain a regression equation of the quantity of the caking ratios.
3. The method for controlling agglomerated tobacco shreds in a tobacco shred drying process according to claim 2, wherein the regression analysis is performed on the amount of agglomerated tobacco shreds, the water content, the filling value and the overall tobacco shred ratio according to the test data, and further comprising:
and estimating the steam flow, the moisture removal negative pressure and the effect and coefficient of the steam flow and the moisture removal negative pressure on the tobacco shred filling value according to the test data so as to obtain a regression equation of the filling value.
4. The method for controlling agglomerated tobacco shreds in a tobacco shred drying process according to claim 3, wherein the regression analysis is performed on the amount of agglomerated tobacco shreds, the water content, the filling value and the overall tobacco shred ratio according to the test data, and further comprising:
and estimating the steam flow, the opening of the inlet tide-discharging air valve, the hot air temperature and the effect and coefficient of the steam flow and the opening of the inlet tide-discharging air valve on the moisture content of the tobacco shreds according to the test data so as to obtain a regression equation of the moisture content.
5. The method for controlling agglomerated tobacco shreds in a tobacco shred drying process according to claim 4, wherein the regression analysis is performed on the amount of agglomerated tobacco shreds, the water content, the filling value and the overall tobacco shred ratio according to the test data, and further comprising:
and estimating the effects and coefficients of the steam flow, the opening of the inlet tide-discharging air gate, the opening of the outlet tide-discharging air gate, the hot air temperature, the rotating speed of the roller and the tide-discharging negative pressure, and the effects and coefficients of the steam flow and the hot air temperature, the opening of the inlet tide-discharging air gate and the opening of the outlet tide-discharging air gate, and the opening of the inlet tide-discharging air gate and the rotating speed of the roller on the tobacco shred finishing rate according to test data so as to obtain a regression equation of the finishing rate.
6. The method of controlling agglomerated tobacco in a tobacco shred drying process according to claim 5, further comprising:
the tobacco shred finishing rate is increased by reducing the opening of the inlet tide-discharging air gate and the opening of the outlet tide-discharging air gate or increasing the tide-discharging negative pressure;
reducing the amount of agglomerated filaments by reducing the steam flow, the inlet moisture removal damper opening, the outlet moisture removal damper opening and the hot air temperature.
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